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    Three phase power supply circuit for three phase power meter

    Hi,

    can anyone suggest me a simple power supply circuit for three phase energy meter. the meter must be able to operate from any single phase when other phases are off.

    •   Alt6th January 2017, 08:48

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    Re: Three phase power supply circuit for three phase power meter

    Hi,

    I assume nobody can design a circuit without any specifications.

    Klaus



    •   Alt6th January 2017, 09:03

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    Re: Three phase power supply circuit for three phase power meter

    Click image for larger version. 

Name:	Energy.png 
Views:	1 
Size:	21.0 KB 
ID:	135064

    Please select DC to DC converter based on the line voltage and required voltage for energy meter



    •   Alt6th January 2017, 09:31

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    Quote Originally Posted by KlausST View Post
    Hi,

    I assume nobody can design a circuit without any specifications.

    Klaus
    hi,

    I want to measure three phase voltages through a micro-controller, i need 12V/2Amp input supply to my motherboard. i have decided to give the power supply from any one of the incoming three phases, say 'R-phase". whenever R-phase goes off, a intermediate circuit should transfer the power supply to other phase. so, my controller always stays ON.

    Quote Originally Posted by smijesh View Post
    Click image for larger version. 

Name:	Energy.png 
Views:	1 
Size:	21.0 KB 
ID:	135064

    Please select DC to DC converter based on the line voltage and required voltage for energy meter
    hi,
    could u explain about this circuit like what kind of component i have to use.



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    Re: Three phase power supply circuit for three phase power meter

    You are not specified the 3 phase voltage
    Assume 320V line to neutral


    You should select 1A 1000V diode (three numbers )
    https://potentiallabs.com/cart/in400...FYUfaAodd6kHMw
    and
    an SMPS 230V to 12V@2A
    http://www.ebay.in/itm/111875814788?aff_source=Sok-Goog

    Hope it is helpful to you !!!



    •   Alt6th January 2017, 12:25

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    Re: Three phase power supply circuit for three phase power meter

    Is your AC source a 4 wire, withe wye connection?
    Or is it a 3 wire, delta connection?
    My batteries are recharged by "Helpful Post" ratings.
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